Answer:
18.78
Step-by-step explanation:
x*(100%-8%)=17.28
x=18.78
I think it is 10
Only because I believe n is still unknown and 4 must be multiplied
example
4(10 + n)
40 + 4n
now if P = 10
4(n + p)
4(n + 10)
4n + 40
The answer is 8
12*10=120 120/15=8